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Finding the Fourth Proportional to 225,299.66, 310,913.55 and 124,697.66

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Solution

The fourth proportional to 225,299.66, 310,913.55 and 124,697.66 is: 172,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,299.66 : 310,913.55 = 124,697.66 : x
  2. Step 2: Convert to fraction form
    225,299.66/310,913.55 = 124,697.66/x
  3. Step 3: Cross multiply
    225,299.66x = 310,913.55 × 124,697.66
  4. Step 4: Simplify right side
    225,299.66x = 38,770,190,592.73
  5. Step 5: Solve for x
    x = 38,770,190,592.73/225,299.66
  6. Step 6: Final answer
    x = 172,082.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.